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Plot the magnitude spectrum in Python using Matplotlib

A Signal is an electromagnetic field or an electric current to transmit data. There are various components of a signal such as frequency, amplitude, wavelength,… Read More

Python-matplotlib

Python

Write From Home

Maximum number of strings that can be formed with given zeros and ones

Given a list of strings arr[] of zeros and ones only and two integer N and M, where N is the number of 1’s and… Read More

Algorithms

Backtracking

Combinatorial

DSA

Dynamic Programming

Recursion

Strings

Maximum of XOR of first and second maximum of all subarrays

Given an array arr[] of distinct elements, the task is to find the maximum of XOR value of the first and second maximum elements of… Read More

Algorithms

Arrays

C++

C++ Programs

Competitive Programming

Data Structures

DSA

Greedy

Python

Searching

Stack

Count triplets such that sum of any two number is equal to third | Set 2

Given an array of distinct positive integers arr[] of length N, the task is to count all the triplets such that the sum of two… Read More

Arrays

Data Structures

DSA

Hash

Generate Complete Binary Tree in such a way that sum of non-leaf nodes is minimum

Given an array arr[] of size N, the task is to generate a Complete Binary Tree in such a way that sum of the non-leaf… Read More

Complete Binary Tree

Arrays

DSA

Stack

Tree

Using Git on CommandLine

Git is very important and powerful tool when it comes to the software development life cycle. Now in this article, we are going to see… Read More

Picked

Git

Nodes at Kth level without duplicates in a Binary Tree

Given a binary tree with N nodes and an integer K, the task is to print nodes of the Kth level of a binary tree… Read More

Binary Tree

tree-traversal

Trees

DSA

Tree

Sort a 2D vector diagonally

Given a 2D vector of NxM integers. The task is to sort the elements of the vectors diagonally from top-left to bottom-right in decreasing order.Examples: … Read More

C++

C++ Programs

DSA

Matrix

Sorting

Check if a Tree can be split into K equal connected components

Given Adjacency List representation of a tree and an integer K., the task is to find whether the given tree can be split into K… Read More

Advanced Data Structure

DSA

Graph

Tree

Screen Orientations in Android with Examples

Screen Orientation, also known as screen rotation, is the attribute of activity element in android. When screen orientation change from one state to other, it… Read More

Android-Misc

Android

Java

Check if N can be expressed as product of 3 distinct numbers

Given a number N. Print three distinct numbers (>=1) whose product is equal to N. print -1 if it is not possible to find three… Read More

number-theory

Algorithms

DSA

Mathematical

Find if a point lies inside, outside or on the circumcircle of three points A, B, C

Given four non-collinear points A, B, C, and P. The task is to find whether point P lies inside, outside or on the circumcircle formed… Read More

Competitive Programming

DSA

Geometric

Find all Factors of Large Perfect Square Natural Number in O(sqrt(sqrt(N))

Given a perfect square natural number N. The task is to find all the factors of N. Examples Input: N = 100 Output: 1 2 4… Read More

Algorithms

Arrays

Data Structures

DSA

Mathematical

Pattern Searching

Program to create Custom Vector Class in C++

The task is to implement a custom vector class similar to the STL vector with following functions: int push_back(data): adds an element(of any data_type) to… Read More

C++

C++ Programs

Data Structures

DSA

Completely Fair Queuing (CFQ) in Operating System

Several Linux I/O schedulers have been proposed. Some of these are: Completely Fair Queuing (CFQ) Deadline NOOP Anticipatory CFQ is one of the input/output scheduler… Read More

Operating Systems

Operating Systems Questions

Advantages and Disadvantages of various CPU scheduling algorithms

CPU Scheduling involves many different scheduling algorithms which have their Advantages and Disadvantages. 1. First Come First Serve (FCFS): Advantages: It is simple and easy… Read More

cpu-scheduling

Picked

GATE CS

Operating Systems

12 Tips to Become a Better Programmer

Becoming a good programmer is something that every computer science student wants. Students try to learn coding from the start of their college in order… Read More

Career-Advices

GBlog

Misc

Steps in Rapid Application Development (RAD) model

Rapid Application Development (RAD) model heavily based on prototyping and iterative development and no detail pre-planning is involve in this model. This model was first… Read More

Software Engineering

Write From Home

Indexing Multi-dimensional arrays in Python using NumPy

In this article, we will cover the Indexing of Multi-dimensional arrays in Python using NumPy. NumPy is a general-purpose array-processing package. It provides a high-performance… Read More

Picked

Python numpy-Indexing

Python

Sum of all numbers in the given range which are divisible by M

Given three numbers A, B and M such that A < B, the task is to find the sum of numbers divisible by M in… Read More

arithmetic progression

Number Divisibility

series-sum

DSA

Greedy

Mathematical